Can-heading machine.



P. WEGNER. CAN HEADING MACHINE.

" APPLIGATION FILED JUNE 10, 1908,

Patented Apr; 5, 1910.

Wit" eases mmew B (in/mm co. puoro-mnoammzns. wAsumcrou. 0. c.

UNITED STACl3 PATENT OFFICE.

FRED WEGNER, OF FAIRIORT, NEW YORK.

CAN-HEADING MACHINE.

To all whom it may concern.

Be it known that I FRED WEGNER, of Fail-port, in the county of Monroeand State of New York, have invented certain new and useful Improvementsin Gan-Heading Machines; and I hereby declare the following to be afull,-clear, and exact description of the same, reference being had tothe accompanying drawings, forming a part of the specification, and tothe reference characters marked thereon.

The present invention relates to can heading machines of the type inwhich seaming devices, preferably rollers, bearwith pressure against theseam during a relative rotation of the can and the seaming device, andthe object of the present invention is to support the seam of the canhead in such a manner that the metal of the seam will not be caused tospread over the can supporting head and interfere with the discharge ofthe can from the machine.

To these and other ends the invention consists in certain improvementsand com binations of parts all as will be hereinafter more fullydescribed, the novel features being pointed out in the claims at the endof the specification.

In the drawings: Figure 1 is a view partly in section and partly inelevation, showing the elements of the machine entering into myinvention. Fig. 2 is a detail view showing portions of the seamingmechanism and the can supporting head in plan; and Fig. 3 is a detailsectional view through a portion of one of the seaming rollers and thecan supporting head.

The cans upon which this machine is designed to operate each comprise abody A formed with outwardly extending flanges B at its ends, and headsC depressed centrally to fit within the body, the flanges of the heads Dbeyond the central depressed portions being rolled by a suitable seamingmechanism with the flanges B to form the seams.

It is preferable to form only one seam at a time in order that the canmay be filled with suitable material, therefore assuming one end of thecan to be seamed, this end is placed upon a rotary support 1 and a seamsupporting head 2 is introduced into the central depression at the otherend either by moving the rotary support 1 or by mov- Specification ofLetters Patent.

Application filed June 10, 1908.

Patented Apr. 5, 1910.

Serial No. 437,664.

ing the head 2, or both of them. The head 2 preferably comprises acylindrical or other shaped portion 2 which fits within the depressionin the can head, and seam supporting flange 2 at the inner end of thesaid portion, having that face 2 which is in proximity thereto curvedand merging into portion 2 The other face of the flange lies inthe'plane of the outer edge of the curved face to provide a sharp edge.The flange 2 prevents the metal of the seam being forced above thesupporting portion which interferes with the withdrawal of the can fromthe head, while the curved face of the flange serves to cause the seamto roll.

The seaming operation is preferably effected by rotating the can incontact with a pair of seaming rollers 3 mounted, if desirable, onslides 4 so that they may be moved toward the can. These seaming rollersare preferably guided on the upper face of the flange and for thispurpose have grooves 5, the upper portions of the walls of which bearagainst the upper face of the flange which, by reason of the sharp edge,permits the entire seam to be rolled and compressed by the rollers. Theother portions of the walls of the grooves serve to roll the flanges andto compress them when the rollers are moved toward the can.

In operation the head 2 is preferably constantly rotated and a can witha head thereon is fitted to the rotary support 1 which is then moved toclamp the can against the head 2. When the can is clamped, as shown inFig. 1, the seaming rollers are moved toward it to first roll it into aseam and then to compress the seam. The flange on the head 2 enters thegroove and assists in the rolling of the seam and at the same time itprevents the metal being forced over the head to retard the discharge ofthe can.

I claim as my invention:

1. A head for can seaming machines comprising a portion to fittwithinthe head of a can, and a seam supporting flange surrounding the head atone end of the head fitting portion, and provided with a curved facemerging into the head fitting portlon, and also with a flat face whichlies in the plane of the outer edge of the curved face to provide asharp edge.

2. The combination with a grooved seaming roller, of a head forcooperation w1th the can comprising a portion to fit- Within the ingwith a face of the groove in the roller can head, and a seam supportingflange surduring the seaming operation.

rounding the head at one end of the head FRED VEGNFP fitting portion andprovided with a curved J L face merging into the head fitting portionVit-nesses: and With a flat face lying in the plane of the GEo. G.MULLINER, outer edge of the curved face and cooperat- ED\VARD R. BROWN.

